Registration system



Jan. 15, 1929.

C. E. LOMAX REGISTRATION SYSTEM 2 Sheets-Sheet 2 Filed June 1925 IWElarsnus E. Lumax HIT":-

' tration systems of the Patented Jan. 15, 1929..

UNITED STATES PATENT POFFICE.

- omnnncn 1:. mm or cmcaeo, nnmors, assrenoa, nY- 1mm assremm's,

T0 AU'IOIATIC li'l-ZIELIZLBIIZC DELAWARE me, or CHICAGO,

mrsmms ILLINOIS, A CORPORATION 01' Application med June a, 192;.sci-mll'o. 35,834.

This invention relates in general to regispatrolman in making his roundsreports his whereabouts to the central stat onby operating the mechanismof re rtmg stations which are distributed over s route.

Specifically the invention relates to improvements in the equipment andcircuits ofsuch a system, which reduces the installation and maintenancecost thereof without impairing the reliability and usefulness of thesystem. 7 e

In the well known registration s use prior to my invention, a numporting stations are stems, r of regrouped together on one line, andthat lineleads to the central stat-ion station. I have provided arelatively smallattendant to listen in on of the line or station fromwhich it comes,-

and terminates on reporting mechanism in dividual to it, In my inventionI have departed from the well known systems of this type by terminatingsuchr'eporting station lines on individual switches at the centralnumber of registering devices operable by 'a control switch which isaccessible to the switches on which the lines terminate.

Accordingly one ofthe objects of my invention is to provide a newregister control mechanism that is accessible to and operable from allof the reporting stations to actuate the registers to visually indicatefrom which reporting station the call has been sent.

A further object of my invention is to provide a pen register mechanismassociated ual to the register control with and indivi switch, this penregister mechanism bein operated simultaneously with the contro switchto permanently register the number of the reporting station.

A further object of my invention is to provide a means enabling thecentral station any call irrespective to supervise and direct thepatrolman.

A further object of my invention is to provide a means enabling thecentral station attendant to connect with any line in the system, tosignal out on that line to call the patrolman to a reporting station,and to provide talking circuits so that the central statype in which theswitch R which Associated with switch, not shown, which the line switchthe plunger,

tion attendant may converse with the patrolman to give directions andinstructrons.

Further ob 'ects of my invention which are not specifica y enumeratedherein will be 66 apparent from the specification and claims whichfollow. The drawings com rising Figs. 1 and 2 when arranged with F 2 tothe right of Fig. 1 with the oorrespon gly I numbered lines inalignment, show suflicient 00 details of the uipment to permit a clearunderstanding 0 my invention.

In Fig. 1 are shown a plurality of reporting stations A, B, and C, whichare connected to the central station over the line 06 conductors 7 and8, which lead through the keys K and K and terminate on the line isindividual to that line.

B is of the well known This line switch plunger type line switch of theautomatic 10 telephone system and is explained in detail in the bookautomatic telephony by Smith and Campbellon pages 44to-50 inclusive. theline switch R is a master cooperates with enabling it to perform itsmaster switch is well known being explained in the above reference andthe circuits of a typical line switch and. master switch installationbeing shown in Fig. so 46 on page 48 of the reference. Briefly themaster switch and line switch cooperate to keep the plunger of the lineswitch stan opposite the terminals of an idle trunk suc as the trunk 13to 16 inclusive leading to as the control switch C of Fig. 2, When acall is initiated by the line to which the switch R is individual, theswitch operates to drive not shown, into the bank clomng the contacts 57to 60 so that they make con- 96 tact with the trunk terminals 13 to 15in-. clusive. Fig.1 also shows the desk equipment DE comprising keys Kand K, relays functions. The

' 20-23 inclusive and the associated apparatus,

detail hereinafter. mo

i is the key K V at the station;

elusive, to light the 'trolman making the report, irresp tion. a

The patrolman making a, call Fig. 2 shows the control switch 0 which isaccessible to any line in the system through the medium of the lineswitch individual to that line. The control switch C may be of the wellknown Strowger type vertical and rotary motion switch, such as is shownin the Patent 815,176 issued March 13, 1906, to Keith, Erickson andErickson, with the circuits modified in accordance with the objects ofthis invention. The control switch 1s operable from the reportingstation to step the wipers 171 and 17 3 into engagement with the bankcontacts such as 194-196 insignal lamp such as 177 to visually indicatethe station from which the report is received. Associated with thecontrol switch, is the pen register PR, which is individual to thecontrol switch and operated simultaneously with it to permanently recordthe number of the reporting station.

In the installation of such a registration system it may be necessary toprovide a plurality of control switches, such as receive the patrolmansreports.- All of these switches are available to the line switch. It andall. have access to the signal, such as 177, the latter being multipliedfrom switch to switch in the well known manner. Each control switch hasits individual pen register to record the codenumbers of the stationsreporting through that switch.

Associated with the control switch trunk, enabling the central stationattendant-to connect the transmitter 117 and the receiver 119 into thetrunk circuit, thereby enabling him to converse with the patthe stationfrom which the report is comin The central station is also e ui ped witthe night alarm signal circuit Nl common to all the control switches andwhich operates whenever a-callis received In order to simplify thedrawing I have shown a plurality of batteries, whereas in theinstallation there would be but one battery, preferably with itspositive pole rounded. ile Ihave chosen to show my invention inconnection with a specific t e of equipment, have done so merely hy wayof exam 1e and am not to be limited by the specific isclosure's'shownherein.

Having thus described my invention in general,- I will now proceed-witha detailed escription of its operation, when the patrolman calls in toreport from a reporting sta- Station A consists of a telephone associated with the standard patrolmans pullv box, such as is well known andin common usage in such systems of the presentday. rom station A removesthe receiver 1 from the switehhook 3 thereby disconnectingasignallingcircuit which includes the signal lamp 62' C, to

the plunger,

relay 101 to ective ofwhich is conductor 14, bank contact 58 through theinmates and the condenser 64:, an'd'clcsesin its place the talkingcircuit which includes the transmitter 2, the induction coil 4 and thereceiver 1. The operation of the hook switch closes the contact 3thereby closing a circuit which is traceable from' ground through spring55 of the individual switch R over conductor 11 through spring 39 andits break contact, conductor 9, through spiing 34 and its break contact,line conductor 7, through the transmitter 2, one winding of theinduction coil 1 impulse springs 6, hook switch 3 and its make contact,line conductor 8, through spring 31 and its break contact, conductor 10,through spring 33 and its break contact, conductor 12, through spring 56and its break contactthrough the winding of relay 17 to groundedbattery. Belay 17 energizes and at sprin 54 closes a circuit traceablefrom groun d spring 54:,through the winding of magnet 18 to open mainbattery. Magnet 18 energizes over this circuit and operates to cause notshown, to close the contacts 57 to 60 inclusive, to the control switch(1 which is traceable;

from ground through the lower winding of through its through thereporting station A to line con- 1 ductor 12 through the spring 57 lineconductor 13 through the upper winding of grounded battery. Relay 101energizes and closes a circuitfrom ground through spring 133 and itsmake contact through the winding of relay 102 to grounded battery.Relay. 102 ener i'zes and at spring 135 closes a circuit om ground trough spring 135 and its make contact,

winding of magnet .19 to grounded battery. 7

Magnet 19 energizes over the "circuit and functions to hold the plunger,not shown, in its operated position. When the magnet 18 energizes itopens the previouslytracerl circuit to the line relay 17 at springs 55and 56, the line relay 17 being slow torelease because of the copperslug on its core remains in energized position for. a'brief intervalafter the circuit through, its coil has been opened( This interval is.long enough to permit the energization' of fore the line relay 17 andopens the previously described circuit ofmagnet18. Relay closes theobvious circuit to sig al lamp 190 magnet 19 be- ;which' includes thesprings 136. Thissignal light will notify the central station-attendantthat a call is coming in on the control detracts its armature 102 uponenergizing switch C. Rela y 102 at springs 134 also prepares theimpulsing circuit which wille explained hereinafter. I I The equipmentisv now ready ,to receive the report from the station The cam-1C pulsespring 6' pulse cam IC to revolve in-the direction indicated by thearrow,-bringing the teeth of the cam between the impulse the abovetraced circuit for the relay 101- a number of times corresponding to thedigit being transmitted. \Vhile the lmplse cam is off normal, the shuntsprings 6 are operated,

to shunt out the transmitter and winding 4 of the induction coil,thereby preventing the receiver 1 as the impulses are sent. Relay .101falls back each time the circuit is opened at the imand opens thecircuit of relay 102, which, being slow to release because of the coppercollar on its core, remains in energized position. Relay 101 on fallingback closes a circuit traceable from ground through spring 133 and itsbreak contact,

. through spring 134 and its make contact,

thence'over two paths in parallel, 'one over conductor 165, through thewinding of the magnet 112 of the pen register PR to grounded negativebattery; and the other through spring 138 and its break contact, throughthe winding of relay 104, over conductor 166, through the winding ofauxiliary switch motor magnet 110, to grounded nega tive batte Ma ets110 and 112 ener and deen gize withtheimpulses recei l i Relay 104energizes on thefirst impulse and, being slow to release because of thecopper collaron-its core, the impulses. In case of the report from digitsent would consist pen register 180 to mark the digit 2 on the recordingtape 181 .in'the well known manner. The. auxiliary; switch 2S would bestepped by the magnet 110 so that its wiper 147 and 148 are in en mentwith the second bank contact.

allows the impulse spring 6 to remain contact for a longer interval thanduring the transmission of the first digit, duringwhich time therelay-104 restores, its circuit being held open. by the relay 101. Whenrelay 104 restores it closes a circuit traceable from ground, throughsprings 135 through springs 139, through the wiper147 now in engagementwith the second bank contact,

conductor 164, through 103 to grounded negative battery. Relay 103energizes over this circuit andat' springs 138 prepares the impulsingcircuit 80' that spring 6' to open net 113 upon energizing,-

.ofi normal spring 190 and its 7 .101'-at impulse remains energizeddurmg r. thev second impulse has been received, the cam ,IG'

yand'its make the winding of relay as explained heretofore. .Relay 101falls back as before, through sprin spring 134 an its make contact, sring 138 and its make contact, through 0 normal spring190 and its breakcontact, through conductor 161, through the winding of relay 105, andmagnet 113fto grounded negative battery; with the above traced parallelcircuit from spring 134 .to the motor magnet- 112 of the pen registerPR. Magnets 112 and 113 energize and follow the impulses delivered bythe relay 101 and 'relay 105 energizes on the first impulse and remainsenergized throughout the impulsing.

raises theswitch shaft and wipers one step vertically at which the offnormal springs 190 and 191 are shifted so that the second impulse to themagnet 113 traverses a circuit including the conductor 162, spring 140and its make contact, thence through the winding of relays 105 andmagnet 113 to groundednegative battery. After the fourth impulse of adigit has been transmitted the impulse cam IC permits the impulse spring6' to close the closing a circuit from ground 133 and its break contact,

Magmake contact,

circuit of relay 101 for'a relatively longer interval, during which timethe circuit of rela is held open, at the spring 133 of re ay 101,causing the relay to restore to preglare the impulsmg circuit so thatthe next t net 114. The, impulse cam IC continuing in its rotationinterrupts the circuit of relay spring 6", impulses, the last digit ofthe call number of station "closing a circuit traceable from ground tospring 133 and its break contact, sprin 134 will be transmitted to therotary mag-i A. Relay 101 falls back, 'as before,

and its make contact, spring 138 an its make contact, oif normal spring190-and its make contact, conductor its break contact, conductor 168,through springs141, through the 107, through the winding of magnet 114to grounded negative battery.

Relay 107 ener-v gizes on the first impulse and remains energized,thrtinghout the digit magnet 114 follows the impulse and advailcesthe'shaft windingof relay 162, spring 140 and carryingthe wipers171-173, inclusive, into engagement with the bank'contacts'194-196,inclusive. Relay107, upon energizing, closes a circuit from groundthrough spring 149 contact, through the winding of relay 108, togrounded negativebattery. Relay108- energizes and at spring 150precircuit. for .relayf106. When the cam IO comesto after trapsmittingthe second impulse of thedigit, Wlth the. impulse spring 6' closed, thecircuitof line relay 101 being permanently closed,.relay 107 falls backafter spring 149, closes a circuit from. ground through spring 149 andits break contact,

an interval and, at

1oo to transmit two 4 ed negative Relay 106 at'sprmg 144- closes acircuit from-,

through spring 150, over conductor 170, through the winding of relay 106to ground- 'battery. Relay 106 energizes.

ground through spring 144, through conduccontact, wiper 173,

through thejsignal negative battery, lighting the light to notifythe'central' station attendant that the call came from the station A.Relayf106 at through spring 143,- conductor 8, signal lamp 159, throughsprings 132 of the key K, conductor 15.7, through the winding of relay115 to grounded negative battery,

energizing the relay 115 and lighting the signal lamp 159, Relay viousnight alarm circuit at spring 153, energizing ,the night alarm to givean audible signal to thecentralstation attendant, informing him of thecall.

If, for any reason, the central station at tendant desiresto talk to thepatrolman, he operates the key K which connects the relay 116 to theline conductors 13 and 15 through condensers 151 and 152; removes thereceiver 119 from the hook switch 118, thereby throwing his telephoneinto operating position so that he may converse with the patrolman.

; Central station attendants telephone receives its battery feed overthe obvious circuit; and the substation v circuits being connectedtogeth A receives its'b'attery feed from the windings of relay10l overthe previously traced circuit including the winding 4 of thein- .ductioncoil and the transmitter 2, these two 2 er by condensers 151and 152through which the alternating currents of speech rea pass in the wellknown manner. Ope key K, interrupted at spring traced circuit including.lamp 159 and its relay 115, extin hing the lamp and allowing therelay'to restore and silence the night alarm. a a I When-theconversation isfinished the central station attendant restores thereceiver 119 to the hook switch 118, thereby interrupting the circuit ofrelay 116', and restores the key K to normal. .The patrolman at; the

' iary switchstation. replaces the receiverl on the hook switch 3whichinterrupts the previouslythe relay-101, which rethe circuit of relay102.

traced circuit for stores and opens ,Relay 102 restores after. a briefinterval, closing a circuit traceable from ground,

- through spring 133 and its break contact,

spring 134 aud ts break contact, thence over parallel circuits, one overconductor 160,

through ofi normal springs 146. of the anxil i e S, through the windingof ma nee-111 b grounded negative battery, j and the other through ofinormal 191 of battery.

from release trunk 159, and the signal 177.

115 closes the ob-' .do this, the centra from the relay 116.

ration of the 132 the above the control switch G, through-the winding ofrelease magnet 109 to grounded negative R'lease magnets 111 and 109energize and restore the auxiliary switch S and the control switch C tonormal in the well known manner. Relay 102, upon deenergizing,vopen'sthe springs'135, removing ground conductor 14, thereby breaking thelocking circuit of the relay 106 which restores and extingalvilslhes theslgnal en the ground is removed from the release trunk conductor spring143 closes a circuit from gfound 14 the winding 19 of the line switch Rdeenergizes, permitting the plunger to restore and break the bankcontacts 57-60, inclusive, thereby restoring all the equipment tonormal, in readiness for the next call.

In the operation of such a police registering system, it may benecessary for the central station attendant to get in communication withthe partrolman to advise him of some emergency re uiring his attention.To

station attendant operates the key K to momentarily isolate the lineswitch R from the lines 7 and 8, and to connect these lines to the deskequipment DE through the medium of the relays 22' and-23. ofthe key Kcloses a circuit from ground through springs 43 and its break contact,conductor 73, through the springs 30, the signal lamp 69' to; groundednegative battery, fighting the lamp which serves to supervise the callThe 0 eration of keyK closes a circuit traceab e from ground,throughspring 36 of the key K peration the motor 71, to groundednegative battery,

generator 72 and the interrupter cam 70. The interrupter cam revolvesinthe direction indicated by the "arrow and after an interval closes acircuit from ground through the interrupter camandits associated camspring, through-spring35 of the key K conductor 77, through spring 42,through the of relay '23, to grounded negative battery. Relay 23energizes, and at springs 40 and 41 closes a circuit from one pole ofthe generator 72,.through spring 41 and its make contact, conductor. 74,through spring 31 and its make contact, line 8, through the hook switch,resistance unit condenser and lamp of fall thesubstations on the line 8in parallel to the line 7, through spring 34 of the key .K and its makecontact, conductor 76, through spring 40 and its make'contact, to thevopposite pole of the generator. Alternating 'currentis projected overthe above traced circuit to light the signal lamps 62- 65, inclusive,thereby notifying the patrolman that he is wanted. After an interval theinterrupter cam 70 opens the above traced circuit for relay 23,whichfalls backand, interrupts the above signalling circuit. In thismanner the and itsmake contact, conductor 16, through starting. themotor in motion to drive the II spring 43 and its break contact. Theconpatrolman notices the si phone through spring 45 acoav'ae lamps onthe lines 7 and 8 are flashed on and oil at intervals under the controlof the patrolman answers the call. When the al he goes to one of thestations on the line, such as'A and answers the call by removing thereceiver 1 from the hook switch 3, during the interval when the signallamp 62 is extinguished, thereby closin' a circuit traceable from oundthrong 52, through spring 40 and its bre contact, conductor 76, s rmg34-and its 'make contact, conductor through the winding 4 01 theinduction coil of the station A, through the impulse spring 6, thetransmitter 2 and the hook switch 3 of the station A, to conductor 8,through 31 and its make contact, conductor lz irough g 41 and its breakcontact, through t e lower winding of relay 22 to grounded negativebattery. Relay 22 energizes over the above traced circuit and at ring 42interrupts the above circuit for re liiy 23, thereby preventing itssubsequent enerigzation, and preventing additional impulses of signalcurrent from being transmitted to the calling line. Relay 22, uponenergizing, closes the circuit from ground its make contact, throu hspring 46 and its break contact, through t he signal lamp 66 to groundednegative batter lightin the signallamp66ande 'g esignal lamp- 69 whichhad been lighted through tral station attendant then'knows that'thepatrolman has answered the call and he connects in his telephone byoperating the key K and then removing the receiver of the telephone. Thetransmitter of the deskequipment telephone receives its battery over acircuit from ground, through the upper winding of relay 22 throughspring '44 and its make contact the. transmitter, receiver and hook meof the deskteles and its make conugh the lowerwinding of relay 22 togrounded negative battery; When the central station attendant and thepatrolman have completed their conversation each restores his receiverto its switchhook, thereby breaking ecircuit to relay 22 and ill lowingit to restore. To restore the central station equipment to normal theattendant mustalso restore the keys K and K. to I normal. If he shouldfail to do this the glefimllampwwillbelightedassoonasthe y 22 restores,over .the circuit previously traced, and" signal current will again berojected over the line as explained herein- Before. When the attendantrestores keys K and K he and reconnects the hnes vidual line switch R,restoring ment toits normal condition.

es all signal lam s all the equipmterrupter cam 70, continuing until thethe upper of relay I pluralit ough spring 43 andstation;

operable from 'whic it 7and8tothein disco If the desk equi mentcomprising relays 22 and 23, should cut of order or in use by thecentral station in calling -another line, the key K can be operated tocall the patrolman at station A, through the medium of the relays 21 and20, which are duplicates of relays 22 and 23. The operation in this caseis identical with that just expIlained and need not be repeated.

aving thus described my invention, what 7 consider new and desire tohave protected by Letters Patent is pointed out in the appended claims.

What is claimed is:

'1. In a registration system, a central station, a plurality of linesterminating thereini reporting stations on said lines, a contro switchat said central station, having a of wipers, a plurality of signalsaccessib e to said Switch through said wipers, means automaticallyoperable in response to the initiation of a call from one of thereporting stations for connecting that station to said control switch,an auxili switch associated with said control swi and controlled fromsaid repo stations to select a particular one of said wipers, and meansthereafter operable and vcontrolled from said station to causethe'control switch to operate said wipers and through said selectedwiper operate the signal corresponding to said reporting station.

In a registration system, a central station, lines terminating stationson said lines, plurality of signals trol switch, a pen registerassociated with said control switch, means responsive to the initiationof a call from oneiof said reporting stations for connecting thatstation to said control switch and means .-for o saigl control and amtiv y operate e'signalcorrespon g to, and to record the number of thereporting 3. In a registration system, a plurality of es havmg commonaccess to a control switch,'.reporting stations on said lin nals accmbletherein, repo a control switch, a

to said. control switch, means said reporting stations, for eelzmg saidcontrol switchand opal-1121i? it-to select a signal corresponding to .aing reporting station to make a report,-'a telephone, forassociatingsaid telephone with the control switch to enable supervision of the callirrespective of the line and station from is sent, desk equipmentcomprising a and signalling equi ment accessible to sai line at a pointahe of said control switch, and means at said necting said deskequipment to said line and nnecting said control'switch.

4. Ina registration system, a plurality of reporting 'ons' on a commonline, said point for com accessible from said con-' registertorespeccommon to said'switches, means '6 1,ees,7ae

line terminating in a' central station, desk equipment comprisingtalking and signal,- ling instrumentalities, a key in said line operableto associate the line with the desk equipment, a si al at each reportingstation, means in t e'desk equipment for actuating all of the si als onsaid line, and means for automatically ,disconnectin the s gnallingmeans and for preparing ta king circmts when the patrolman answers thecall from any station on the line.

5..,In a registration system, a plurality of each contammg, reportingstations, im-

..-transmitted from said reporting station or positio said auxiliaryswitch to select one of sai wipers, means responsive to the next twodigits for positioning the control switch to associate certain of saidsignals with the control switch and means automaticallypperable at thecompletion of the transmisslon of the last of said digits to operate thesignal associated with said seleoted wiper.

6. In a registration system, a line containing reporting stations, animpulse transmitting device at each reporting station and individualthereto, said device being arranged to transmit a code of impulsesindividual to that station, a central station, line switches at saidstation on which said lines individually terminate, a control switchaccessible to said line -switches, signal lamps one for each rgporting'station on said line accessible to sai control switch, a recordingdevice associated with said control switch, said line switch responsiveto the initiation of a call from one of said rigorting stations toconnect that line. to ''e control switch vand means responsive .toimpulses transmitted by said transmitting device at said reportingstation, for simultaneously setting said control switch in a position tooperate the signal corresponding to thereporting station and operatingsald recording device to register its individual code. i

7. In a re" 'stration system, a central sta'- tion, aplura of lines eachterminating in an' individualhneswitcli at said central station,reporting, stations on said lines, a switch and transmitting, device ateach one or -said reporting stations, a plurality of control switchesaccessible to said line switches, a plurality of signal an auxiliarylamps one for each of said reporting stations accessible to said controlswitch, means responsive .to the o eration of one of said reportingstation sw tches for operating said line switch to seize said controlswitch,

and means responsive to impulses transmitted by said impulsetransmitting'device at one of said reporting stations to oper-V ate saidcontrol switch to li ht the one of said signal lamps corres portingstation from w were ,sent. v 1

8. In a registration system, a line, reporting stations on said line,a'central station, a non-numerical switch in said line at saidcentralstation, a control-switch acces- 'ch t e impulses 'sible to saidnon-numerical switch and operable bya calling reporting station torecord said station on a plurality of indicators, desk equipmentcomprising talking and signalling instrumentalities accessible to saidline, and means on said line at said central station for variablyconnecting said line to said control switch or said desk equipment.

9. In a registration system, a central station, lines terminatingtherein, a plurality of reporting stations on said lines, a controlswitch at said central station operable to register a calling reportingstation, desk equipment comprising talking and signal ling means at saidcentral station, and means operable in each ofsaid lines for connectingsaid lines with said desk equipment and disconnecting said controlswitch.

10. In a registration system, a central station, a plurality of linesterminating therein, a plurality of reporting stations on' each of saidlines, a control switch having on 'n to the re-' a plurality of wipersat said central station,

switch associated with said control switch for selecting a particularone of said wipers, a signal individual to each reporting station andaccessible to said-con trol switch wipers, means automatically operablein response to the initiation of a call from one of the reportingstations for connecting that station to said control switch, and meansthereafter operable to cause the auxiliary switch to select one of saidwipers and the control switch to select and through said selected wiperoperate the signal corresponding to the reportingstation. v

11. In a registration a plurality of lines, a plurality of reportingstations on each of said lines, a central station, a control switch atsaid central station accessible to said lines, a plurality of signals,one for each of said reporting stations, accessible to said vswitchthrough a plurality of wipers hereof, an auxiliary swans-scent d withsaid control "switch for selecting a particular one of said wipers,responsive to the initiation of a call from one of said report ingstations for connecting said control switch therewith, means controlledfrom said station for operating said auxiliary switch to select aparticular wiper and subsequently '5 to operate said control switch toselect a lamp over said selected wiper corresponding so said reportlngstation, and a register de-

